Press chief (6)
I believe the answer is:
editor
'press chief' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for editor that I've seen before include "Do tire out the press person" , "One responsible for leader" , "one in charge of 10 [PRESS GANG] ?" , "Senior journalist" , "Triode (anag.)" .)